CBS 3 caught up with Gomez, who said he feels good entering primary day.

"When the poll came out a week or so ago that had us in the lead, where we surged from last to first, it was not surprising," said Gomez. "That is the sense I have had from going out around the state. I am just getting a lot of enthusiasm from the campaign."

U.S. Reps. Ed Markey and Stephen Lynch are vying for the Democratic nomination.